In Dutch cycle infrastructure major intersections were created in different ways in the past.
First we see a major intersection from the 1960s in Utrecht. Two roads with 2×2 lanes and separated cycle paths on all 4 sides meet. Shown is how a cyclist makes a left turn there.
Then we compare it to a major intersection in nearby Houten (in 2008 voted best cycle city of the Netherlands) where a decades younger solution for a major intersection makes a left turn for a cyclist a lot easier, quicker and safer.
Junction design in the Netherlands